CN103217283A - Method for verifying guide plate performance microgravity tests in plate type propellant management device - Google Patents
Method for verifying guide plate performance microgravity tests in plate type propellant management device Download PDFInfo
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- CN103217283A CN103217283A CN2013101251623A CN201310125162A CN103217283A CN 103217283 A CN103217283 A CN 103217283A CN 2013101251623 A CN2013101251623 A CN 2013101251623A CN 201310125162 A CN201310125162 A CN 201310125162A CN 103217283 A CN103217283 A CN 103217283A
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Abstract
The invention discloses a method for verifying guide plate performance microgravity tests in a plate type propellant management device. Guide plate scaling model components different in section shape are test objects. According to the testing method, a method for realizing microgravity tests of the guide plate scaling model components different in section shape and different testing condition replacing strategies are mainly designed, and test preparation, test procedures, camera shooting observing methods, test anti-interference strategies and the like are stipulated. The testing method is reasonable in design, strong in operability, and capable of realizing all tests of microgravity of the guide plate scaling model components and recording the whole fluid conveying process in a shooting mode, and brings convenience to analysis of subsequent test results and guide plate optimized designs. According to the testing method, fluid management and conveying characteristics of guide plate models can be acquired, and performance of the guide plates can be verified.
Description
Technical field
The present invention relates to affiliated parts---the verification experimental verification method of fair water fin fluid transmission performance under microgravity condition in a kind of board-like propellant management device (PDM), can be applied to the microgravity test of various fair water fin scale models.
Background technology
Along with developing rapidly of large-scale truss type platform satellite in the world, adopt the propellant tank of board-like PMD to become main flow in the world.From Eleventh Five-Year Plan latter stage, begin to have carried out the board-like PMD propellant tank of high capacity development work, developed board-like PMD model machine, carried out the ground demonstration test of board-like PMD fluid transmission performance and management of performance.This Demonstrator Trials can only be verified the local performance of board-like PMD, can't truly reflect it utilizes the surface tension convection body under space environment management, control and transmittability.Therefore, must carry out a large amount of microgravity tests, component capabilities under the board-like PMD is furtherd investigate.So from March, 2011, at parts---fair water fin contracts than design under the board-like PMD of the board-like tank of certain satellite platform high capacity, built a cover microgravity test system, the clear and definite overall plan and the function of pilot system summed up parts---simple, reliable, the feasible microgravity test method of fair water fin fluid transmission performance checking under the board-like PMD that is applicable to that drawn.Use this test method, repeatedly finished the affiliated parts of board-like PMD---the fluid management transport property of the different scale models of fair water fin and the microgravity test of liquid level repositioning process, verified the fluid management and the transmittability of microgravity environment chin spoiler.
Simultaneously, because board-like PMD propellant tank development and correlation test verification technique relate to national security, the country that has grasped this technology often carries out blockade on new techniques, abroad the data that can provide is very not comprehensive, can only play certain reference, all not mentioned detailed pilot system design in the related article of delivering, mechanism research to board-like PMD parts must be built pilot system voluntarily, carry out a large amount of microgravity tests, sum up the microgravity test verification method, obtain the sufficient firsthand information, these basic datas can not obtain from foreign literature.
In sum, the microgravity test verification method of parts under a kind of board-like PMD---fair water fin performance is to carry out the achievement of groping and summing up in the board-like PMD propellant tank of the high capacity development process, the whole test method is brand-new, domestic do not have relevant document and data to use for reference, and seldom discloses the similar pilot system of careless mistake abroad yet.In order to realize that parts---the fair water fin fluid transfer pipe is rational can be verified under the board-like PMD,, affiliated parts---the microgravity test verification method of fair water fin performance of a kind of board-like PMD has been proposed first in conjunction with the practice and the experience of process of the test.
Summary of the invention
Technology of the present invention is dealt with problems and is: overcome the deficiencies in the prior art, fair water fin performance microgravity test in a kind of board-like propellant management device verification method is provided, can verifies board-like PMD affiliated parts---the fluid management and the transmittability of fair water fin under the microgravity environment effectively.
Technical solution of the present invention is: the fair water fin performance microgravity test verification method in a kind of board-like propellant management device, and described subjects is fair water fin scale model parts, performing step is as follows:
(1) the microgravity test system that will be used for fair water fin transmission performance checking connects, and enters step (2);
(2) modes of emplacement of fair water fin scale model parts is the key factors that influence the fair water fin transmission performance, chooses two or more fair water fin scale model parts as this subjects, enters step (3); Modes of emplacement according to fair water fin reality in board-like PMD, the modes of emplacement of described fair water fin scale model parts has parallel type to put mode and vertical-type modes of emplacement, the cross sectional shape of described parallel type fair water fin scale model parts is an isosceles-trapezium-shaped, and the cross sectional shape of described vertical-type fair water fin scale model parts is a rectangle.Parallel type fair water fin scale model parts and the parallel placement of experimental liquid trough wall surface, the residing plane of isosceles trapezoid top margin d2 is near the experimental liquid trough wall surface, vertical-type fair water fin scale model parts are placed with the experimental liquid trough wall surface is vertical, and the residing plane of rectangular wide d is near the experimental liquid trough wall surface;
(3) fair water fin scale model parts and experimental liquid trough wall surface clearance distance also are the key factors that influences the fair water fin transmission performance, in the test liquid bath, place fair water fin scale model parts according to a kind of modes of emplacement, and fair water fin scale model parts and experimental liquid trough wall surface are kept the certain interval distance, guaranteeing simultaneously has enough distances between two fair water fin scale model parts, prevent between the fair water fin scale model parts to produce mutually flow interfering, fix fair water fin and contract and enter step (4) than scale model; Described fair water fin scale model parts and experimental liquid trough wall surface clearance distance are 0.5mm, 1mm, 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm or 5mm; Distance between described two kinds of fair water fin scale model parts should be not less than 25mm;
(4) in the test liquid bath, add certain simulated solution, enter step (5) after will testing the liquid bath good seal; In order can more clearly to observe and the comparison test result, level is about 5%～10% of liquid bath total depth in the described test liquid bath;
(5) the liquid bath test of adding simulated solution and good seal is placed on the microgravity test system frame, guarantees that described test liquid bath installs and fixes fair water fin scale model parts one side near high-speed CCD camera, will test entering step (6) after liquid bath fixes;
(6) adjust high-speed CCD camera camera head, support and filter device, guarantee that photographic effect is good, can the whole microgravity test process of spotless track record;
(7) high-speed CCD camera is opened the video recording pattern, begun to carry out microgravity test.After microgravity test finishes, reclaim the microgravity test system, preserve the obtained image result of shooting;
(8) according to the microgravity test result of all acquisitions, judge whether to have covered described various fair water fin scale model parts and liquid bath wall clearance distance, if cover fully, then enter step (9); If not cover fully, then enter step (3), change fair water fin scale model parts and liquid bath wall clearance distance;
(9) according to the microgravity test result of all acquisitions, judge whether to have covered various described fair water fin scale model parts, if cover fully, then microgravity test is finished end; If not cover fully, then enter step (2), change fair water fin scale model parts.
Described parallel type fair water fin scale model modular construction parameter mainly comprises trapezoidal base d1, trapezoidal top margin d2, trapezoidal height b1 and model assembly height h1.Described trapezoidal base d1 is 6mm or 12mm.When described trapezoidal base d1 was 6mm, described trapezoidal top margin d2 was 1mm, 2mm, 3mm, 4mm or 5mm, and described trapezoidal height b1 is 2mm; When described trapezoidal base d1 was 12mm, described trapezoidal top margin d2 was 2mm, 4mm, 6mm, 8mm or 10mm, and described trapezoidal height b1 is 4mm.Described model assembly height h1 is 40mm.
Described vertical-type fair water fin scale model modular construction parameter mainly comprises long d, wide b2, model assembly height h2.Described long d is 2mm, 4mm, 6mm, 8mm or 10mm; Described wide b2 is 0.5mm; Described model assembly height h2 is 40mm.
Described test liquid bath adopts pmma material, and its refractive index is 1.491, and transmittance is about 90%, and total depth is 60mm in the described test liquid bath.
The present invention's beneficial effect compared with prior art is:
(1) the present invention adopts multiple scale model to carry out microgravity test simultaneously, and test findings contrast effect is splendid, helps test result analysis, simultaneously test efficiency and economic benefit height.
(2) test method of the present invention's employing is reasonable, practical, workable, good checking effect is played in fair water fin fluid management and transmission performance, be applied in the board-like PMD propellant tank development of high capacity, for board-like PMD optimal design provides the good data basis, be with a wide range of applications and promotion prospect.
Description of drawings
The structure principle chart of the pilot system that Fig. 1 adopts when being the inventive method realization;
Fig. 2 is the structural representation of Height Adjustable test bracket component among Fig. 1;
Fig. 3 is the process flow diagram of test method of the present invention;
Fig. 4 is a fair water fin scale model modular construction synoptic diagram of the present invention, and wherein a is parallel type fair water fin scale model parts, and b is vertical-type fair water fin scale model parts;
Fig. 5 is that fair water fin scale model parts of the present invention are placed synoptic diagram in the test liquid bath.
Embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is further described in detail.
As shown in Figure 1, the pilot system that the inventive method adopted comprises parts such as pilot system substrate 1, Height Adjustable test bracket component, image capturing system, illuminator, and part such as Height Adjustable test bracket component, image capturing system, illuminator all arranges two covers symmetrically on pilot system substrate 1, and pilot system possesses the ability of carrying out two kinds of test model microgravity tests simultaneously.
Pilot system substrate 1 is the circular aluminium flat board of lightweight that an inside is the timber keriotheca, be used to realize the installation compactly of parts such as Height Adjustable test bracket component, image capturing system, illuminator with fixing, realize that simultaneously pilot system is connected with the installation of microgravity test cabin.
Height Adjustable test bracket component is made up of two support plates and two supports, first support plate 3 and 13 distributions of second support plate are used for the support fixation first test liquid bath 2 and second test liquid bath 14, the first supports 4 and second support 12 and are respectively applied for support fixation first support plate 3 and second support plate 13.
Image capturing system is made up of two high-speed CCD cameras, two CCD cameras and two camera bearings, and the highest resolution of first high-speed CCD camera is 1280 * 1024pixel, and the frame per second of camera can reach 1000fps under this resolution.First high-speed CCD camera 7 and second high-speed CCD camera 15 are fixed on respectively on the first camera bearing 8 and the second camera bearing 16, be respectively applied for trial image in the real time record first test liquid bath 2 and the second test liquid bath 14, a CCD camera 9 of providing for oneself in the microgravity test cabin and the 2nd CCD17 camera real-time radio the spread of the rumours first are respectively tested the test preparation that liquid bath 2 and second is tested liquid bath 14, guarantee that microgravity test normally carries out smoothly.
Illuminator is made up of two high light light sources and two filters, the first high light light source 5 and the second high light light source 10 are fixed on respectively on the flat board of first support 4 and second support 12, promptly lay respectively at first support plate 3 and second support plate 13 under, first filter 6 and second filter 11 lay respectively between a CCD camera 7, second high-speed CCD camera 15 and the first test liquid bath 2, the second test liquid bath 14.
The concrete connected mode of pilot system is as follows: accomplish fluently in advance on pilot system substrate 1 and be used for the fixing the corresponding mounting hole of support and camera support; First support 4 and second support 12 are fixed on corresponding position on the pilot system substrate 1 respectively; The first camera bearing 8 and the second camera bearing 16 are fixed on corresponding position on the pilot system substrate 1 respectively; First high-speed CCD camera 7 and second high-speed CCD camera 15 are fixed on respectively on the first camera bearing 8 and the second camera bearing 16; The first test liquid bath 2 and the second test liquid bath 14 are fixed on respectively on first support plate 3 and second support plate 13, then according to the first test liquid bath 2 and the mounting means of the second test liquid bath 14 and the photographic effect of first high-speed CCD camera 7 and second high-speed CCD camera 15, regulate support plate 3 and support plate 13 height, first support plate 3 of the first test liquid bath 2 and second support plate 13 of the second test liquid bath 14 then will be installed be separately fixed on first support 4 and second support 12 at support 4 and support 12; Pilot system substrate 1 installation that installs pilot system is engaged on appropriate location in the microgravity test cabin, carry out first high-speed CCD camera 7 and the 15 shooting adjustings of second high-speed CCD camera then, confirm that first filter 6 and second filter 11 lay respectively at the position between a CCD camera 7, second high-speed CCD camera 15 and the first test liquid bath 2, the second test liquid bath 14, then that first filter 6 and second filter 11 is fixing.
As shown in Figure 2, be equipped with a plurality of pilot holes on four pillars of each support, be used to regulate the height of support plate.And each support plate is porous plate, can adapt to the different tests model and install and fix requirement.Support plate is placed height and can be regulated according to test model, and whole Height Adjustable test bracket component mounting or dismounting are very easy.
Though high-speed CCD camera has higher light sensitivity,, must use the high light light illumination because the high-speed capture following time shutter of situation is extremely short.Because it is many in the test model with transparent pmma material, refraction meeting by organic glass under the high light light illumination produces hot spot in image, influence picture quality, therefore between camera and test model, need to add filter, to obtain higher-quality image.
Shown in a among Fig. 4, parallel type fair water fin scale model modular construction parameter mainly comprises trapezoidal base d1, trapezoidal top margin d2, trapezoidal height b1 and model assembly height h1.Described trapezoidal base d1 is 6mm or 12mm.When described trapezoidal base d1 was 6mm, described trapezoidal top margin d2 was 1mm, 2mm, 3mm, 4mm or 5mm, and described trapezoidal height b1 is 2mm; When described trapezoidal base d1 was 12mm, described trapezoidal top margin d2 was 2mm, 4mm, 6mm, 8mm or 10mm, and described trapezoidal height b1 is 4mm.Described model assembly height h1 is 40mm.Shown in the b among Fig. 4, vertical-type fair water fin scale model modular construction parameter mainly comprises long d, wide b2, model assembly height h2.Described long d is 2mm, 4mm, 6mm, 8mm or 10mm; Described wide b2 is 0.5mm; Described model assembly height h2 is 40mm.
As shown in Figure 5, the test liquid bath adopts pmma material, and its refractive index is 1.491, and transmittance is about 90%, and total depth is 60mm in the test liquid bath.Modes of emplacement according to fair water fin reality in board-like PMD, the modes of emplacement of fair water fin scale model parts has parallel type to put mode and vertical-type modes of emplacement, the cross sectional shape of parallel type fair water fin scale model parts is an isosceles-trapezium-shaped, and the cross sectional shape of vertical-type fair water fin scale model parts is a rectangle.Parallel type fair water fin scale model parts and the parallel placement of experimental liquid trough wall surface, the residing plane of isosceles trapezoid top margin d2 is near the experimental liquid trough wall surface, vertical-type fair water fin scale model parts are placed with the experimental liquid trough wall surface is vertical, and the residing plane of rectangular wide d is near the experimental liquid trough wall surface.Fair water fin scale model parts and experimental liquid trough wall surface clearance distance are 0.5mm, 1mm, 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm or 5mm; Distance between two kinds of fair water fin scale model parts should be not less than 25mm.
As shown in Figure 3, the inventive method, subjects are fair water fin scale model parts, and step is as follows:
(1) the microgravity test system that will be used for fair water fin transmission performance checking connects, and enters step (2);
(2) choose four fair water fin scale model parts as this subjects, two fair water fin scale model parts are made as one group, totally two groups, enter step (3);
(3) fair water fin modes of emplacement, fair water fin and liquid bath wall clearance distance are the key factors that influences the fair water fin transmission performance.According to fair water fin scale model unit type each group fair water fin scale model parts is placed in the test liquid bath according to certain way, and keep certain interval apart from placement with test liquid bath 2 and the wall of testing liquid bath 14 respectively two groups of fair water fin model assemblies, choose 2mm such as clearance distance, guarantee that simultaneously distance is not less than 25mm between interior on the same group two fair water fin scale model parts, prevent to produce mutually between two fair water fin scale model parts flow interfering, behind the first test liquid bath 2 and the good scale model parts of second test liquid bath 14 internal fixation, enter step (4);
(4) in the first test liquid bath 2 and the second test liquid bath 14, add certain simulated solution, will enter step (5) behind the first test liquid bath 2 and the second test liquid bath, 14 good seals; In order can more clearly to observe and the comparison test result, described test liquid bath internal mold is intended the liquid level and is about 5%～10% of test liquid bath total depth;
(5) be placed on respectively on microgravity test system first support plate 3 and second support plate 13 adding the first test liquid bath 2 of simulated solution and good seal and the test model of the second test liquid bath 14, guarantee that described test liquid bath installs and fixes fair water fin scale model parts one side all near first high-speed CCD camera 7 and second high-speed CCD camera 15, the first test liquid bath 2 and second is tested entering step (6) after liquid bath 14 fixes;
(6) adjust first high-speed CCD camera 7 and second high-speed CCD camera, 15 camera heads, first support 4 and devices such as second support 12, first filter 6 and second filter 11, the photographic effect of guaranteeing first high-speed CCD camera 7 and second high-speed CCD camera 15 is good, can the whole microgravity test process of spotless track record;
(7) first high-speed CCD camera 7 and second high-speed CCD camera 15 are all opened the video recording pattern, begin to carry out microgravity test.After microgravity test finishes, reclaim the microgravity test system, preserve the obtained image result of shooting;
(8) according to the microgravity test result of all acquisitions, judge whether to have covered described various fair water fin scale model parts and liquid bath wall clearance distance, if cover fully, then enter step (9); If not cover fully, then enter step (3), the clearance distance of change fair water fin scale model parts and liquid bath wall;
(9) according to the microgravity test result of all acquisitions, judge whether to have covered various described fair water fin scale model parts, if cover fully, then microgravity test is finished end; If not cover fully, then enter step (2), change fair water fin scale model parts.
In the board-like surface tension propellant tank development process of China's model satellite platform high capacity, used the inventive method board-like PMD deflector structure fluid management transmission performance has been carried out the microgravity test checking, for the fair water fin optimal design provides important value.
The unspecified part of the present invention belongs to general knowledge as well known to those skilled in the art.
Claims (4)
1. the fair water fin performance microgravity test verification method in the board-like propellant management device, described subjects is fair water fin scale model parts, it is characterized in that step is as follows:
(1) the microgravity test system that will be used for fair water fin transmission performance checking connects, and enters step (2);
(2) modes of emplacement of fair water fin scale model parts is the key factors that influence the fair water fin transmission performance, chooses two or more fair water fin scale model parts as this subjects, enters step (3); Modes of emplacement according to fair water fin reality in board-like PMD, the modes of emplacement of described fair water fin scale model parts has parallel type to put mode and vertical-type modes of emplacement, the cross sectional shape of described parallel type fair water fin scale model parts is an isosceles-trapezium-shaped, and the cross sectional shape of described vertical-type fair water fin scale model parts is a rectangle.Parallel type fair water fin scale model parts and the parallel placement of experimental liquid trough wall surface, the residing plane of isosceles trapezoid top margin d2 is near the experimental liquid trough wall surface, vertical-type fair water fin scale model parts are placed with the experimental liquid trough wall surface is vertical, and the residing plane of rectangular wide d is near the experimental liquid trough wall surface;
(3) fair water fin scale model parts and experimental liquid trough wall surface clearance distance also are the key factors that influences the fair water fin transmission performance, in the test liquid bath, place fair water fin scale model parts according to a kind of modes of emplacement, and fair water fin scale model parts and experimental liquid trough wall surface are kept the certain interval distance, guaranteeing simultaneously has enough distances between two fair water fin scale model parts, prevent between the fair water fin scale model parts to produce mutually flow interfering, fix fair water fin and contract and enter step (4) than scale model; Described fair water fin scale model parts and experimental liquid trough wall surface clearance distance are 0.5mm, 1mm, 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm or 5mm; Distance between described two kinds of fair water fin scale model parts should be not less than 25mm;
(4) in the test liquid bath, add certain simulated solution, enter step (5) after will testing the liquid bath good seal; In order can more clearly to observe and the comparison test result, level is about 5%～10% of liquid bath total depth in the described test liquid bath;
(5) the test liquid bath that adds simulated solution and good seal is placed on the microgravity test system frame, guarantees that described test liquid bath installs and fixes fair water fin scale model parts one side near high-speed CCD camera, will test entering step (6) after liquid bath fixes;
(6) adjust high-speed CCD camera camera head, support and filter device, guarantee that photographic effect is good, can the whole microgravity test process of spotless track record;
(7) high-speed CCD camera is opened the video recording pattern, begun to carry out microgravity test.After microgravity test finishes, reclaim the microgravity test system, preserve the obtained image result of shooting;
(8) according to the microgravity test result of all acquisitions, judge whether to have covered described various fair water fin scale model parts and liquid bath wall clearance distance, if cover fully, then enter step (9); If not cover fully, then enter step (3), change fair water fin scale model parts and liquid bath wall clearance distance;
(9) according to the microgravity test result of all acquisitions, judge whether to have covered various described fair water fin scale model parts, if cover fully, then microgravity test is finished end; If not cover fully, then enter step (2), change fair water fin scale model parts.
2. the fair water fin performance microgravity test verification method in a kind of board-like propellant management device according to claim 1 is characterized in that: described parallel type fair water fin scale model modular construction parameter mainly comprises trapezoidal base d1, trapezoidal top margin d2, trapezoidal height b1 and model assembly height h1.Described trapezoidal base d1 is 6mm or 12mm.When described trapezoidal base d1 was 6mm, described trapezoidal top margin d2 was 1mm, 2mm, 3mm, 4mm or 5mm, and described trapezoidal height b1 is 2mm; When described trapezoidal base d1 was 12mm, described trapezoidal top margin d2 was 2mm, 4mm, 6mm, 8mm or 10mm, and described trapezoidal height b1 is 4mm.Described model assembly height h1 is 40mm.
3. the fair water fin performance microgravity test verification method in a kind of board-like propellant management device according to claim 1 is characterized in that: described vertical-type fair water fin scale model modular construction parameter comprises long d, wide b2, model assembly height h2; Described long d is 2mm, 4mm, 6mm, 8mm or 10mm; Described wide b2 is 0.5mm; Described model assembly height h2 is 40mm.
4. the fair water fin performance microgravity test verification method in a kind of board-like propellant management device according to claim 1, it is characterized in that: described test liquid bath adopts pmma material, its refractive index is 1.491, and transmittance is about 90%, and total depth is 60mm in the described test liquid bath.
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| CN104502128A (en) * | 2014-12-01 | 2015-04-08 | 北京邮电大学 | Space manipulator collision algorithm verification technology based on microgravity simulation system |
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Cited By (2)
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| CN104502128A (en) * | 2014-12-01 | 2015-04-08 | 北京邮电大学 | Space manipulator collision algorithm verification technology based on microgravity simulation system |
| CN104502128B (en) * | 2014-12-01 | 2017-10-03 | 北京邮电大学 | A kind of space manipulator collision algorithm verification method based on microgravity simulation system |
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